package kuda.rrtool;

import gnu.trove.map.hash.TLongObjectHashMap;
import kuda.KudaInterface;
import kuda.util.BackgroundWorker;
import rr.event.AccessEvent;
import rr.event.ArrayAccessEvent;
import rr.event.FieldAccessEvent;
import rr.meta.FieldInfo;
import rr.state.ShadowThread;
import rr.state.ShadowVar;

/**
 * Copyright (c) 2010-2011,
 * Tayfun Elmas    <elmas@cs.berkeley.edu>
 * All rights reserved.
 * <p/>
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * <p/>
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * <p/>
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * <p/>
 * 3. The names of the contributors may not be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 * <p/>
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
public abstract class KudaShadowVar implements ShadowVar {
    // instance fields
    final public long memId;

    protected KudaShadowVar (AccessEvent ae) {
        // compute memId
        final AccessEvent.Kind kind = ae.getKind();
        if(kind == AccessEvent.Kind.ARRAY) {
            final ArrayAccessEvent aae = ((ArrayAccessEvent)ae);
            this.memId = KudaInterface.variableId(aae.getTarget(), aae.getIndex());
        } else {
            final FieldAccessEvent fae = ((FieldAccessEvent)ae);
            final FieldInfo fi = fae.getInfo().getField();

            if(fi.isStatic()) {
                this.memId = KudaInterface.variableId(fi.getOwner().getId(), fi.getId());
            } else {
                this.memId = KudaInterface.variableId(fae.getTarget(), fi.getId());
            }
        }
    }
}
